Product Description
Rol-Lift RL RL-31-3 Load Roller Assembly featuring a 3 inch diameter ultra poly tread on machined aluminum hub with flanged ball bearings. Engineered for Rol-Lift Series T frame manual pallet jacks. Integrated alignment washers, 6061-T6 hub, and 92 Shore A polyurethane provide extended service life and compatibility with equivalent and superseded part numbers. Designed for optimal fit and load distribution with sealed bearing configuration.
Compatibility: Fits pallet jacks made by Rol-Lift, model Series E. Alternate model: Serie E. SKU: RL RL-31-3
Specifications
Material & Construction
| Polyurethane Tread Hardness | 92 Shore A (nominal) |
| Aluminum Grade | 6061-T6, machined finish |
Part Numbers
| OEM Part Number | RL RL-31-3 |
| Cross-Reference Part Numbers | Rol-Lift RL-31-3, RL-31-3, RL RL31-3, RLRL-31-3 |
Frequently Asked Questions
Q: What are the dimensions and material specifications of the RL RL-31-3 load roller?
A: The RL RL-31-3 has a 3 inch nominal diameter with ultra polyurethane tread rated at 92 Shore A hardness. The hub is machined from 6061-T6 aluminum, which provides strength and corrosion resistance. Flanged ball bearings are integrated for precision rolling and load distribution.
Q: Which Rol-Lift manual pallet jack models are compatible with the RL RL-31-3?
A: The RL RL-31-3 is engineered for Rol-Lift Series T frame manual pallet jacks. Confirm your pallet jack model matches Series T specifications and that the axle bore accommodates the roller hub diameter. Equivalent part numbers include Rol-Lift RL-31-3, RL-31-3, RL RL31-3, and RLRL-31-3.
Q: What is Shore A hardness and why does it matter for the RL RL-31-3 tread?
A: Shore A hardness measures polyurethane durometer. The RL RL-31-3 is nominally 92 Shore A, which indicates a firm, load-bearing compound suitable for manual pallet jack wheels. This hardness resists excessive tread wear during heavy load cycles while maintaining floor contact and grip.
Q: What are the flanged ball bearings and how do they improve the RL RL-31-3 performance?
A: Flanged ball bearings feature side flanges that contain the rolling elements, reducing lateral play and axial movement. This design improves alignment accuracy, reduces wobble during load handling, and extends operational life by minimizing side forces on the bearing races.
Q: Why is 6061-T6 aluminum chosen for the RL RL-31-3 hub?
A: 6061-T6 aluminum offers excellent strength-to-weight ratio and superior corrosion resistance compared to cast aluminum. The T6 heat treatment hardens the alloy for precision machining and load bearing. This grade is ideal for pallet jack components exposed to moisture and variable temperatures.
Q: How do integrated alignment washers contribute to RL RL-31-3 operation?
A: Integrated alignment washers maintain precise roller positioning on the axle, preventing axial drift and uneven tread wear. This centering function ensures smooth rolling and reduces operational friction, extending both the roller and bearing service life.